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View Full Version : Top speed of JRRSC w/kpro


si4life
05-12-2008, 12:15 PM
what's the fastest our cars can go with JR supercharger and kpro? The speedometer says 140 mph, but wats the actual max speed i cah reach?
si4life
05-12-2008, 12:26 PM
Bump, I'm bored at work
BlownSi05
05-12-2008, 12:34 PM
i dont know what the actual speed was, but i have maxed out 5th gear at 7500 rpm. calculated by the speedo it should have been 150-155mph, but the speedo is a bit inaccurate that high from what i have heard. i need to actually data log it once.
Lucid Moments
05-12-2008, 12:42 PM
The JRSC won't make any difference to the top speed, the K-pro might. Our cars are redline limited as far as top speed goes. At stock redline the top speed is approximately 134. With K-pro its going to depend on what you raise your rev limit too.
BlownSi05
05-12-2008, 12:43 PM
The JRSC won't make any difference to the top speed, the K-pro might. Our cars are redline limited as far as top speed goes. At stock redline the top speed is approximately 134. With K-pro its going to depend on what you raise your rev limit too.

this is true.
si4life
05-12-2008, 12:49 PM
ok cool. do some cars have fuel cut off programed in the ecu???


The JRSC won't make any difference to the top speed, the K-pro might. Our cars are redline limited as far as top speed goes. At stock redline the top speed is approximately 134. With K-pro its going to depend on what you raise your rev limit too.
si4life
05-12-2008, 12:50 PM
what's speedo? thanks for the input!


i dont know what the actual speed was, but i have maxed out 5th gear at 7500 rpm. calculated by the speedo it should have been 150-155mph, but the speedo is a bit inaccurate that high from what i have heard. i need to actually data log it once.
Lucid Moments
05-12-2008, 01:05 PM
ok cool. do some cars have fuel cut off programed in the ecu???

Yes, stock the EP fuel cut is at 6800 if I recall correctly. With K-pro it is changable.


what's speedo? thanks for the input!

Speedometer. In the EP it is notorious for being a little innacurate at high speeds. People have reported seeing the speedometer go over 140 on a stock EP but that is due to its innacuracy.
si4life
05-12-2008, 01:10 PM
Thanks for answering my questions. 50 mins and then i get out of work. :mbiggrin:


Yes, stock the EP fuel cut is at 6800 if I recall correctly. With K-pro it is changable.



Speedometer. In the EP it is notorious for being a little innacurate at high speeds. People have reported seeing the speedometer go over 140 on a stock EP but that is due to its innacuracy.
Guardian
05-12-2008, 07:04 PM
wow whats this site coming too
r_jones06
05-12-2008, 07:09 PM
Speedometer. In the EP it is notorious for being a little innacurate at high speeds. People have reported seeing the speedometer go over 140 on a stock EP but that is due to its innacuracy.

agreed.. i was with my friend when he hit 145 on the speedo... i didn't think it was possible for it to go that fast... especially considering that all he had was intake and exhaust.
antisocial
05-22-2008, 01:04 PM
with the rev limiter set at 7700 (kpro), stock trans, and a 215/45/17, your top speed will be about 160 mph
antisocial
05-22-2008, 01:06 PM
agreed.. i was with my friend when he hit 145 on the speedo... i didn't think it was possible for it to go that fast... especially considering that all he had was intake and exhaust.
that depends on the tire size. with stock tires, the speedo is a couple mph optimistic. seems to be the most accurate with a 215/45/17, which is a touch taller than stock.